Thread guide



. C. F. GRAM THREAD GUIDE Sept. 29, 1936.

Filed July 25, 1932 Patented Sept. 29, 1936 UNITED- STATES 2,055,820 THREAD GUIDE Carl F. Gram, Johnson City, Tenn., assignor to North American Rayon Corporation, New York, N. Y., a corporation of Delaware Application July 25, 1932, Serial No. 624,635

6 Claims.

My present invention concerns a new and novel automatic thread guide.

More particularly, my present invention has to do with a new thread guide to be used in guiding artificialfilaments to a spool.

One object of the present invention is to provide a new and novel thread guide arangement which will automatically grip the thread for guiding purposes.

Another object is to produce a novel thread guide the use of which will result in the saving of time when the spools are dofied.

Other objects will become apparent from a study of the following specification and claims, and of the accompanying drawing, in which:

Figure l is a front elevation, showing the relationship between the spinnerette, two spools to be wound, and my new thread guide;

Figure 2 is a side elevation of one thread guide and a supporting arm;

Figure 3 is a view taken on line 3-3 of Figure 2;

Figure 4 is a detailed view of one portion of each of the thread guides and the means for gripping them;

Figure 5 is a detailed view of one portion of the gripping means; and

Figure 6 is a perspective view of one of the thread guides.

Referring now to the drawing, l represents the thread guide, comprising a bar portion 2 terminating at one end in a downwardly turned gripping portion 3. At the other end is fixed a w-shaped bar, the central portion 4 forming a groove or U to accommodate thread or filaments, the two arms or wing portions 5 and 6 extending outwardly from, and at an angle to, the bar portion 2.

In Figure 3, I have shown the holder used in order to secure the new thread guide in position. The holder comprises a grooved, acid-resistant base I provided with a central opening 8 whereby the entire structure may be gripped by the operating mechanism I3. The supporting arm Il may be gripped into the holder portion 1 at 8 in any detachable way. The drawing discloses one means, whereby the portion 1 may be'threaded onto the support ll. Two other openings 9 are provided, into which the thread guide portion 3 is placed. An elastic means I0 is provided for gripping the guide I in position in the holder 1, and in the groove l2, beforementioned.

In operation, two spools are usually placed above a spinnerette, and act as collecting or takeup means. The assembly is clearly set forth in copending application, Serial Number 634,778,

filed September 24, 1932, by the present applicant and Dr. Richard Elssner.

The newly-formed filaments are carried upwardly from a precipitating or coagulating bath and, as is clearly shown in Figure 1,v guided over 5 one of the two collecting spools. As soon as one spool is filled, the filaments are placed about the other spool. My present thread guide is adapted to be used together with a pair of such spools, to guide the filaments thereto. It is to 10 be understood, however, that I do not wish my present invention to be limited to a pair of spools, since it may be advantageously used with a single spool.

The filament need not be placed in the guiding 15 slot 4, since the whole thread guide mechanism l3 moves to and fro along the length of the spool. The arms 5 and 6 of the thread guide will contact with the filaments and guide them into the groove 4. Therefore, it is merely necessary for the operator to pass one end of the wet filament onto the revolving spool. The thread guide automatically picks up the filament and center it at 4 for guiding onto the spool. Furthermore, should the filament or thread, for some reason, 25 be ejected from the groove 4, it will automatically be guided back into proper position, thus preventing the possibility of losing yarn, due to poorly wound spools.

I have found that if the two arms 5 and 6 are 30 at an angle of approximately 30 with respect to a line perpendicular to the bar 2, the best results will be accomplished.

Having now set forth my invention as required by the patent statutes, what I desire to claim is: 35

1. In a thread guide device for use in the production of filaments, threads and yarn from spinning solutions, in combination, a device for extruding yarn, a take-up device for collecting the yarn extruded, and a thread or yarn guiding 40 means positioned between said take-up and extrusion devices, said thread guiding means comprising a supporting arm terminating in a W- shaped portion, the central portion of the W adapted to act as a thread guiding groove, the 5 outer legs of the W extending into the path of the filaments passing from the extrusion means to the collecting device at the beginning of the winding operation and adapted to automatically guide the filaments into the guiding groove.

2. In a spinning mechanism for the manufacture of thread and the like comprising thread extruding means, a take-up spool upon which the extruded thread is wound, reciprocatory guide means positioned between said extrusion means 55 and said spool for guiding the thread to said spool including an acid resistant member bent substantially in the form of a V, having wing portions extending rearwardly and away from said V member and adapted to extend into the path of the thread as it passes from the extrusion means to the spool at the beginning of the wind whereby the thread automatically is guided into the V portion.

3. In a spinning mechanism for the manufacture of thread and the like comprising thread extruding means, a pair of take-up spools upon which the thread is consecutively wound, recip rocatory guide means positioned between said extrusion means and said spools for guiding said thread to said take-up spools including an acid resistant member for each spool, each member being bent substantially in the form of a V havingwing portions extending rearwardly and away from said V member and adapted to extend into the path of the thread as it passes from the extrusion means to the spool at the beginning of the wind, whereby when the thread is shifted from one spool to the other the said wing portions act to automatically guide the thread into the V portion.

4. In a spinning mechanism for the manufacture of thread and the like comprising thread extruding means, take-up spools upon which the extruded thread is wound, reciprocatory means positioned between said extrusion means and said spools for guiding thread to said spools comprising a supporting arm, a pair of thread guides secured thereto, the thread guides each comprising a central V-shaped portion and wing portions and extending therefrom rearwardly and away from said V-portion and into the path of threads passing from said extrusion means to said spools and thereby adapted automatically to guide displaced thread back into said V-portion whereby the said thread may be reciprocated to build up a yarn body on the said spool.

5. In combination with a yarn extrusion device a yarn take-up device, a guiding means for laying up the yarn on said take-up device comprising, in combination, a supporting arm and a pair of threadguides attached thereto, the said guides each comprising a guiding groove and a pair of arms extending outwardly therefrom and adapted to extend into the path of the thread passing from said extrusion device to said take-up device at the beginning of the winding of the thread on the said take-up device, whereby the said thread is automatically guided into said guiding groove.

6. In combination with a yarn extrusion device a yarn take-up device, a guiding means for laying up the yarn on said take-up device comprising in combination a supporting arm and at least one threadguide attached thereto comprising a guiding groove and at least one arm extending outwardly therefrom and adapted to extend into the path of the thread passing from said extrusion device to said take-up device at the beginning of the winding of the thread on said takeup device whereby the said thread is automatically guided into said guiding groove.

CARL F. GRAM. 

